Finding the Fourth Proportional to 5,143,372.61, 7,711,472.23 and 2,263,356.05
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Solution
The fourth proportional to 5,143,372.61, 7,711,472.23 and 2,263,356.05 is: 3,393,455.74
Step by Step Solution
- Step 1: Write the proportion equation
5,143,372.61 : 7,711,472.23 = 2,263,356.05 : x - Step 2: Convert to fraction form
5,143,372.61/7,711,472.23 = 2,263,356.05/x - Step 3: Cross multiply
5,143,372.61x = 7,711,472.23 × 2,263,356.05 - Step 4: Simplify right side
5,143,372.61x = 17,453,807,281,961.74 - Step 5: Solve for x
x = 17,453,807,281,961.74/5,143,372.61 - Step 6: Final answer
x = 3,393,455.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.